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K\"all\'en-Lehmann representation of noncommutative quantum electrodynamics
Noncommutative (NC) quantum field theory is the subject of many analyses on
formal and general aspects looking for deviations and, therefore, potential
noncommutative spacetime effects. Within of this large class, we may now pay
some attention to the quantization of NC field theory on lower dimensions and
look closely at the issue of dynamical mass generation to the gauge field. This
work encompasses the quantization of the two-dimensional massive quantum
electrodynamics and three-dimensional topologically massive quantum
electrodynamics. We begin by addressing the problem on a general dimensionality
making use of the perturbative Seiberg-Witten map to, thus, construct a general
action, to only then specify the problem to two and three dimensions. The
quantization takes place through the K\"all\'en-Lehmann spectral representation
and Yang-Feldman-K\"all\'en formulation, where we calculate the respective
spectral density function to the gauge field. Furthermore, regarding the photon
two-point function, we discuss how its infrared behavior is related to the term
generated by quantum corrections in two dimensions, and, moreover, in three
dimensions, we study the issue of nontrivial {\theta}-dependent corrections to
the dynamical mass generation
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